docs: adjust description to say we support other devices than mice
docs: adjust description to say we support other devices than mice

Signed-off-by: Filipe Laíns <d780ea131edc6126ff48fa0382b66c02d54b57a5@archlinux.org>

libratbag/libratbag,whot/libratbag,libratbag/libratbag,libratbag/libratbag,whot/libratbag,whot/libratbag